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vfs: in iomap seek_{hole,data}, return -ENXIO for negative offsets

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In the iomap implementations of SEEK_HOLE and SEEK_DATA, make sure we
return -ENXIO for negative offsets.

Inspired-by: Mateusz S <muttdini@gmail.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Darrick J. Wong 2017-07-12 10:26:47 -07:00
parent 0891f9971a
commit d6ab17f261
1 changed files with 4 additions and 4 deletions
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8
fs/iomap.c
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@ -610,8 +610,8 @@ iomap_seek_hole(struct inode *inode, loff_t offset, const struct iomap_ops *ops)
loff_t length = size - offset;
loff_t ret;
/* Nothing to be found beyond the end of the file. */
if (offset >= size)
/* Nothing to be found before or beyond the end of the file. */
if (offset < 0 || offset >= size)
return -ENXIO;
while (length > 0) {
@ -656,8 +656,8 @@ iomap_seek_data(struct inode *inode, loff_t offset, const struct iomap_ops *ops)
loff_t length = size - offset;
loff_t ret;
/* Nothing to be found beyond the end of the file. */
if (offset >= size)
/* Nothing to be found before or beyond the end of the file. */
if (offset < 0 || offset >= size)
return -ENXIO;
while (length > 0) {